By frying the fat, you will end up with a stronger smelling tallow that is darker in color. The act of frying fat is actually called "trying".
"Rendering" will give you a less fragrant product that is cleaner and whiter tallow. Rendering has water in the bottom of the pot and limits the temperature that the fat reaches, preventing scorching. Put a lid on it and hold just about at a simmer. Strain out solids and allow to cool, the water and fat will separate, the fat hardening more if it is refrigerated. What is left over can be "tried" out for projects less in contact with sensitive noses!
The best fat was the kidney fats. That is the "leaf lard" from hogs and is the best for cooking and making tallow candles, soaps, etc. The omentum fat of the belly is second best. And backfat/hip fat is third. I am hoping to get five or ten pounds of kidney fat for making soap this summer, I have people interested in buffalo soap!